/* ============================================
   DINERIN — Landing Page Styles
   Fintech Minimalista · Mobile First · Core Web Vitals
   ============================================ */

/* ---- CSS Custom Properties ---- */
:root {
  /* Colors — sobrios, profesionales */
  --color-bg: #FAFBFC;
  --color-bg-alt: #F1F5F9;
  --color-bg-dark: #0F172A;
  --color-bg-card: #FFFFFF;
  --color-text: #1E293B;
  --color-text-secondary: #64748B;
  --color-text-light: #94A3B8;
  --color-text-inverse: #F8FAFC;
  --color-primary: #0EA5E9;
  --color-primary-hover: #0284C7;
  --color-primary-light: #E0F2FE;
  --color-accent: #06B6D4;
  --color-success: #10B981;
  --color-success-light: #D1FAE5;
  --color-warning: #F59E0B;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3rem;
  --font-size-5xl: 3.5rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 64px;

  /* Borders & Shadows */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 8px 30px rgba(15, 23, 42, 0.1);
  --shadow-xl: 0 20px 60px rgba(15, 23, 42, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ---- Reset & Base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-xl));
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

ul, ol {
  list-style: none;
}

strong {
  font-weight: 600;
}

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ---- Section Label ---- */
.section-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.4);
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.btn--large {
  padding: 1.125rem 2.5rem;
  font-size: var(--font-size-md);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-base);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.nav__logo:hover {
  color: var(--color-text);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 110;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.nav__menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  z-index: 105;
}

.nav__menu.is-open {
  display: flex;
}

.nav__menu a {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text);
}

.nav__menu a:hover {
  color: var(--color-primary);
}

.nav__cta {
  background: var(--color-primary) !important;
  color: #FFFFFF !important;
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm) !important;
}

.nav__cta:hover {
  background: var(--color-primary-hover) !important;
  color: #FFFFFF !important;
}

/* ============================================
   1) HERO
   ============================================ */
.hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.hero__content {
  max-width: 600px;
}

.hero__content h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-bg-dark);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.hero__sub {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
}

.hero__microcopy {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* Hero Screenshot Placeholder */
.hero__visual {
  width: 100%;
}

.hero__screenshot {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.hero__placeholder {
  padding: var(--space-lg);
}

.placeholder__bar {
  height: 8px;
  background: var(--color-bg-alt);
  border-radius: 4px;
  width: 40%;
  margin-bottom: var(--space-lg);
}

.placeholder__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.placeholder__card {
  background: var(--color-bg-alt);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.placeholder__card--wide {
  grid-column: 1 / -1;
}

.placeholder__label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.placeholder__value {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
}

.placeholder__value--positive {
  color: var(--color-success);
}

.placeholder__chart {
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  height: 80px;
  margin-top: var(--space-md);
}

.placeholder__chartbar {
  flex: 1;
  background: linear-gradient(to top, var(--color-primary), var(--color-accent));
  border-radius: 4px 4px 0 0;
  opacity: 0.7;
}

/* ============================================
   2) PROBLEMA
   ============================================ */
.problem {
  padding: var(--space-5xl) 0;
  background: var(--color-bg-card);
}

.problem__inner {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.problem__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-lg);
}

.problem__intro {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3xl);
}

.problem__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.problem__item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.problem__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FEF2F2;
  border-radius: var(--radius-md);
  color: #EF4444;
}

.problem__item strong {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.problem__item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   3) DIFERENCIAL CLAVE
   ============================================ */
.feature-main {
  padding: var(--space-5xl) 0;
  background: var(--color-bg);
}

.feature-main__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  max-width: 700px;
  margin-bottom: var(--space-lg);
}

.feature-main__intro {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-3xl);
}

.feature-main__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-card__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--font-size-sm);
  border-radius: 50%;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   4) DEUDAS
   ============================================ */
.debts {
  padding: var(--space-5xl) 0;
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.debts__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.debts .section-label {
  color: var(--color-accent);
}

.debts__content h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.debts__content > p {
  color: var(--color-text-light);
  font-size: var(--font-size-md);
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.debts__content em {
  color: var(--color-accent);
  font-style: normal;
  font-weight: 500;
}

.debts__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.debts__features li strong {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-xs);
}

.debts__features li p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Debt Simulator Visual */
.debt-simulator {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.debt-simulator__header {
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.debt-simulator__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.debt-simulator__row:last-child {
  border-bottom: none;
}

.debt-simulator__value {
  font-weight: 600;
  color: var(--color-text-inverse);
}

.debt-simulator__value--better {
  color: var(--color-success);
}

/* ============================================
   5) AHORRO
   ============================================ */
.savings {
  padding: var(--space-5xl) 0;
  background: var(--color-bg-card);
}

.savings__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  max-width: 700px;
  margin-bottom: var(--space-lg);
}

.savings__intro {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-3xl);
}

.savings__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.savings__card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.savings__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.savings__card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-success-light);
  color: var(--color-success);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.savings__card h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.savings__card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   6) MOBILE + BOT
   ============================================ */
.mobile {
  padding: var(--space-5xl) 0;
  background: var(--color-bg);
}

.mobile__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.mobile__content h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-lg);
}

.mobile__content > p {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.mobile__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.mobile__feature {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.mobile__feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
}

.mobile__feature strong {
  display: block;
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.mobile__feature p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Phone Mockup */
.mobile__visual {
  display: flex;
  justify-content: center;
}

.mobile__mockup {
  width: 280px;
  background: var(--color-bg-dark);
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.mockup__notch {
  width: 100px;
  height: 20px;
  background: var(--color-bg-dark);
  border-radius: 0 0 16px 16px;
  margin: 0 auto var(--space-sm);
  position: relative;
  z-index: 2;
}

.mockup__screen {
  background: #1E293B;
  border-radius: 24px;
  padding: var(--space-lg);
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.mockup__chat {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mockup__msg {
  max-width: 85%;
  padding: var(--space-sm) var(--space-md);
  border-radius: 12px;
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.mockup__msg--user {
  align-self: flex-end;
  background: var(--color-primary);
  color: #FFFFFF;
}

.mockup__msg--bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
}

.mockup__msg small {
  display: block;
  margin-top: 4px;
  opacity: 0.7;
  font-size: var(--font-size-xs);
}

/* ============================================
   7) PLANES
   ============================================ */
.pricing {
  padding: var(--space-5xl) 0;
  background: var(--color-bg-alt);
}

.pricing__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-md);
}

.pricing__intro {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.pricing__note {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-3xl);
}

.pricing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.pricing__grid--three {
  grid-template-columns: 1fr;
}

.pricing__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing__card--featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-md);
}

.pricing__card--annual {
  border-color: var(--color-warning);
  box-shadow: 0 0 0 1px var(--color-warning), var(--shadow-md);
}

.pricing__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.pricing__badge--annual {
  background: var(--color-warning);
  color: var(--color-bg-dark);
}

.pricing__equiv {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-top: var(--space-xs);
}

.pricing__card-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.pricing__price {
  margin-bottom: var(--space-lg);
}

.pricing__amount {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-bg-dark);
  letter-spacing: -0.02em;
}

.pricing__period {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-left: var(--space-xs);
}

.pricing__discount {
  display: inline-block;
  margin-left: var(--space-sm);
  padding: 2px 10px;
  background: var(--color-success-light);
  color: var(--color-success);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: 20px;
}

.pricing__features {
  flex: 1;
  margin-bottom: 0;
}

.pricing__features li {
  padding: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pricing__features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.pricing__features li:first-child::before {
  content: '';
}

.pricing__features li:last-child {
  border-bottom: none;
}

.pricing__founder-note--bottom {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-align: center;
  line-height: 1.6;
}



/* ============================================
   8) EDUCACIÓN FINANCIERA
   ============================================ */
.education {
  padding: var(--space-5xl) 0;
  background: var(--color-bg-card);
}

.education__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-md);
}

.education__intro {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-3xl);
}

.education__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.education__card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.education__card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  line-height: 1.3;
}

.education__card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.education__card p:last-child {
  margin-bottom: 0;
}

/* ============================================
   9) FAQ
   ============================================ */
.faq {
  padding: var(--space-5xl) 0;
  background: var(--color-bg);
}

.faq__inner {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.faq__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-3xl);
}

.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-lg) 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: '+';
  font-size: var(--font-size-xl);
  font-weight: 400;
  color: var(--color-text-light);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.faq__item[open] .faq__question::after {
  content: '−';
}

.faq__item[open] .faq__question {
  color: var(--color-primary);
}

.faq__answer {
  padding-bottom: var(--space-lg);
}

.faq__answer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ============================================
   10) CTA FINAL
   ============================================ */
.cta-final {
  padding: var(--space-5xl) 0;
  background: linear-gradient(135deg, var(--color-bg-dark), #1E293B);
  text-align: center;
}

.cta-final__inner {
  max-width: 700px;
  margin: 0 auto;
}

.cta-final__inner h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-inverse);
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.cta-final__sub {
  font-size: var(--font-size-md);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.cta-final__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.cta-final__microcopy {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.footer__logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-inverse);
  display: block;
  margin-bottom: var(--space-sm);
}

.footer__brand p {
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.footer__col h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__col a {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer__col a:hover {
  color: var(--color-text-inverse);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

/* ============================================
   RESPONSIVE — Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  :root {
    --font-size-2xl: 2.25rem;
    --font-size-3xl: 3rem;
  }

  .container {
    padding: 0 var(--space-2xl);
  }

  .placeholder__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature-main__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .savings__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .education__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing__grid--three {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }

  .footer__links {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .footer__brand {
    flex: 0 0 auto;
    max-width: 250px;
  }

  .footer__links {
    flex: 1;
    max-width: 400px;
  }

  .footer__bottom {
    flex: 0 0 100%;
  }
}

/* ============================================
   RESPONSIVE — Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  :root {
    --font-size-2xl: 2.5rem;
    --font-size-3xl: 3.25rem;
  }

  /* Nav desktop */
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    display: flex;
    position: static;
    background: transparent;
    flex-direction: row;
    gap: var(--space-xl);
    align-items: center;
  }

  .nav__menu a {
    font-size: var(--font-size-sm);
  }

  /* Hero */
  .hero {
    padding: calc(var(--header-height) + var(--space-5xl)) 0 var(--space-5xl);
  }

  .hero__inner {
    flex-direction: row;
    align-items: center;
  }

  .hero__content {
    flex: 0 0 50%;
  }

  .hero__content h1 {
    font-size: var(--font-size-4xl);
  }

  .hero__visual {
    flex: 0 0 50%;
  }

  .hero__actions {
    flex-direction: row;
    align-items: center;
  }

  /* Feature grid */
  .feature-main__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Debts */
  .debts__inner {
    flex-direction: row;
    align-items: flex-start;
  }

  .debts__content {
    flex: 1;
  }

  .debts__visual {
    flex: 0 0 400px;
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
  }

  /* Mobile section */
  .mobile__inner {
    flex-direction: row;
    align-items: center;
  }

  .mobile__content {
    flex: 1;
  }

  .mobile__visual {
    flex: 0 0 320px;
  }

  /* Savings */
  .savings__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* CTA Final */
  .cta-final__inner h2 {
    font-size: var(--font-size-3xl);
  }
}

/* ============================================
   RESPONSIVE — Large Desktop (1280px+)
   ============================================ */
@media (min-width: 1280px) {
  .hero__content h1 {
    font-size: var(--font-size-5xl);
  }
}

/* ============================================
   LEGAL PAGES (Términos / Privacidad)
   ============================================ */
.legal {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-5xl);
  background: var(--color-bg);
}

.legal__inner {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.legal__header {
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
}

.legal__back {
  display: inline-block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  transition: color var(--transition-fast);
}

.legal__back:hover {
  color: var(--color-primary);
}

.legal h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-md);
}

.legal__updated {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.legal__content section {
  margin-bottom: var(--space-2xl);
}

.legal__content h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-top: var(--space-md);
}

.legal__content p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.legal__content p:last-child {
  margin-bottom: 0;
}

.legal__content ul {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
}

.legal__content li {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  padding: var(--space-xs) 0;
  list-style: disc;
}

.legal__content li::marker {
  color: var(--color-primary);
}

.legal__content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal__content a:hover {
  color: var(--color-primary-hover);
}

.legal__footer {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: flex-start;
}

.legal__footer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.legal__footer a:not(.btn) {
  color: var(--color-primary);
}

@media (min-width: 768px) {
  .legal h1 {
    font-size: var(--font-size-3xl);
  }
}

/* ============================================
   ACCESSIBILITY & PERFORMANCE
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-primary);
  color: #FFFFFF;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  z-index: 200;
  font-size: var(--font-size-sm);
}

.skip-link:focus {
  top: var(--space-md);
}

/* Selection */
::selection {
  background: var(--color-primary-light);
  color: var(--color-bg-dark);
}

/* Print */
@media print {
  .site-header,
  .nav__toggle,
  .btn,
  .hero__visual,
  .mobile__visual,
  .debt-simulator {
    display: none !important;
  }

  body {
    color: #000;
    background: #FFF;
    font-size: 12pt;
  }

  .debts {
    background: #FFF;
    color: #000;
  }

  .cta-final {
    background: #FFF;
    color: #000;
  }

  .cta-final__inner h2,
  .cta-final__sub {
    color: #000;
  }
}